Liquid-Cooled Speaker Module for Accommodating Cavity Heat Dissipation

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Solution Overview

Problem

Existing speaker modules suffer from poor heat dissipation efficiency and risk of damage due to high temperatures in the accommodating cavity.

Innovation Solution

A speaker module design featuring a casing with a speaker driver, a heat dissipation bracket with a first cooling channel around the driver, and a heat dissipation pipe with a second cooling channel outside the casing, both filled with cooling liquid, allowing for efficient heat transfer and circulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If heat dissipation bracket transfers heat to accommodating cavity, then heat dissipation structure is simple, but heat dissipation efficiency is poor and speaker driver may be damaged due to high temperature

Engineering Contradiction:
Improveheat dissipation structureVSAvoidtemperature in accommodating cavity
Core Design Contradiction:
Device complexityVSTemperature

Solution Approach 1:

The heat dissipation system is segmented into multiple independent cooling channels (first cooling channel in heat dissipation bracket, second cooling channel in heat dissipation pipe) that operate separately but work together. This segmentation allows heat to be dissipated through multiple pathways simultaneously, improving heat dissipation efficiency while maintaining structural simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Cooling liquid is introduced as an intermediary substance to transfer heat from the speaker driver through the heat dissipation bracket and heat dissipation pipe to the external environment. The cooling liquid absorbs heat in the first cooling channel and transports it to the second cooling channel for external dissipation, effectively lowering the temperature in the accommodating cavity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If cooling liquid flows through cooling channels, then heat dissipation efficiency is improved, but device complexity increases due to additional components

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidcooling system structure
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The cooling liquid circulation system merges the heat dissipation bracket and heat dissipation pipe into a unified cooling network through communicated cooling channels. The first cooling channel and second cooling channel are connected to form an integrated cooling path, allowing the system to achieve efficient heat dissipation without requiring separate independent cooling systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cooling liquid serves multiple functions: it cools the speaker driver through the first cooling channel, transports heat through the connection between channels, and dissipates heat externally through the second cooling channel. This multi-functionality reduces the need for additional dedicated components, maintaining device simplicity while improving heat dissipation efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances heat dissipation efficiency by transferring heat generated by the speaker driver to the outside through cooling liquid channels, reducing the risk of damage and improving stability.

Implementation Method 1

the heat generated by the speaker driver is transferred to the accommodating cavity through the heat dissipation bracket

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

the first cooling channel and the second cooling channel are filled with cooling liquid

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS20250351295A1Speaker module
Publication Date: 2025.11.13 AAC ACOUSTIC TECH (SHENZHEN) CO LTD
  • US20250351295A1 patent drawing
  • US20250351295A1 patent drawing
  • US20250351295A1 patent drawing

AI summary

The present application provides a speaker module, including a casing, a speaker driver arranged in an accommodating cavity of the casing, a heat dissipation bracket, and a heat dissipation pipe arranged on the heat dissipation bracket outside the casing and abutted against the heat dissipation members outside the speaker module. The heat dissipation bracket is provided with a first cooling channel, which is arranged around the speaker driver. The heat dissipation pipe is provided with a second cooling channel communicated with the first cooling channel. Both the first cooling channel and the second cooling channel are filled with cooling liquid. The heat generated by the vibration of the speaker driver can be transferred to the outside through the cooling liquid in the first and so that the circulating flow of the cooling liquid is realized, and the heat dissipation efficiency of the heat dissipation bracket is improved.